Just a few suggestions to save you some heartache. Make sure the tank is totally clean,and their is nothing leftover that will mess with your new environment, like copper. Also, I would suggest you plan your whole livestock list before you start, that way you can research the compatibility all at once, and not get your heart set on something only to find out it does not mix well with something you bought early. That will also help to put them in an an order that will reduce stress, ie most aggresive last, passive first. Good luck.